Question

A)2X+5>-3X+40
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B)6(X-5)-2(4X+2)>80
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C)20-(7X+4)<30

Answer 1

A) 2x + 5 > -3x + 40 2x + 3x > 40 - 5 5x > 35 x > 35/5 x > 7 B) 6 . (x - 5) - 2 . (4x + 2) > 80 6x - 30 - 8x - 4 > 80 -2x > 80 + 34 -2x > 114 (-1) 2x < -114 x < -114/2 x < -57 C) 20 - (7x + 4) < 30 20 - 7x - 4 < 30 -7x < 30 - 16 -7x < 14 (-1) 7x > -14 x > -14/7 x > -2